had the 2-seater up again today for a short hop. i now have the engines running fairly well, the idle started acting funny today. i am finding that i am slowly reverting to the fuel system that shannon recommended i use in 2001.... in tank fuel filters, no primer bulbs, straight line to the fuel pump (in my case) and all uphill on the fuel lines....
by doing all of this i have virtually eliminated all air/fuel vapour bubbles in my fuel lines and it seems that the engine/carb likes it that way. so for anyone having random strange acting engines, attack the fuel system first.
as an aside, i have now theorized that my jets on the dell'orto carb that are modified do not allow full low speed lean adjustment and this is causing my idle to linger at a higher rpm before dropping to tick-over speed. i'll be swapping in original needles and we'll see what we see. if that doesn't do it, then i'm changing the front crank seals on these 2 engines.
Tyler
PS: it could very well be that all of my other engine "seizures" were due to a poorly designed fuel delivery system with bubbles getting to the carb....causing fuel starvation which would look like seizure due to lean gas/air mix....(lack of gas)